Radar sees what leaks do to the ground. Acoustics proves where they live.

It sees what leaks do to the ground. Radar reflects off contrasts — and water changes ground's dielectric behaviour dramatically. A leak shows as saturation signatures, disturbed or washed-out bedding, and voids where soil migrated into a failing pipe. GPR maps those consequences and the pipe's exact position; acoustic methods then confirm the active escape point. The pairing is the method — neither alone is the whole answer.

GPR earns its place when geometry is unknown or the ground itself is in question: no reliable drawings, suspected voids under slabs, pavement settling near a line, in-slab pipes that must be located before cutting, or rebar that must be cleared before coring into a repair. If the pipe's route is known and the question is purely 'where along it is the leak' — acoustics may be all the job needs, and we'll say so.

Two expensive surprises: cutting into rebar or post-tension strands (a $20,000+ mistake in PT slabs), and opening the slab at the wet spot rather than the leak — water travels under slabs, so the stain and the source routinely sit metres apart. A scan locates the line, clears the reinforcement, and bounds the moisture before the saw starts.

It's the single biggest factor. Dry sands and gravels are radar-friendly to good depth; wet clays and silts absorb signal fast and shrink the useful range. That's why every city page here states the local ground honestly — and why our crews pick antennas and expectations to match the dirt, not the brochure.

All five core applications — underground water leak detection, slab leak detection, pipe leak detection, sewer leak detection, and pool leak detection — carry dedicated pages for every one of the 47 BC cities we serve, each with that city's real ground conditions stated honestly. This hub also has its own page per city, linking the local set together.

Completely — GPR emits less radio-frequency energy than a phone. No evacuations, no permits, no interference with equipment. Scanning slabs in occupied homes, offices, and care facilities during business hours is routine.

GPR leak detection uses ground-penetrating radar to find where water is escaping by imaging what the leak does to the subsurface — the saturated soil, the washed-out pipe bedding, the void forming around a failing line — rather than the water itself. Radar reflects off the contrast between wet and dry ground and between the pipe and its surroundings, so a leak shows as a distinct anomaly along the line. It's the imaging half of leak detection, paired with acoustic confirmation to pinpoint the exact escape point. Across BC, it's how we locate buried and under-slab leaks that produce little usable sound.

Yes — that's one of its core uses. A pressurised underground leak saturates the soil around it and often erodes the bedding or opens a void; GPR maps those subsurface changes from the surface, marking the suspect zone along the line. It doesn't 'see water' directly so much as see what escaping water changes about the ground, which is why we confirm GPR findings with acoustic correlation before excavation. The combination locates buried leaks to dig accuracy without trenching to find them.

They sense different things and cover each other's blind spots. Acoustic correlation listens for the sound a pressurised leak makes travelling along the pipe — fast and precise on metal mains, but weaker on plastic, low-pressure, or very small leaks. GPR images the subsurface regardless of sound: it maps saturation, voids, washouts, and the pipe's exact position, and works where there's no usable leak noise. The professional locate runs both — GPR to image and position, acoustics to pinpoint the escape — which is why we lead with the right tool for each line and confirm with the other.

Better than acoustic-only methods do. Plastic mains carry leak noise poorly, which defeats correlation — but GPR doesn't depend on the pipe being metal or noisy; it images the wet ground and bedding disturbance the leak creates, and can often locate the plastic pipe itself where soil conditions allow. For non-metallic lines that won't talk to a correlator, GPR (with sonde tracing where a route is needed) is frequently the method that finds them. Local soil matters — wet clay limits radar depth — which is why every city page states its ground honestly.

It's quoted by scope — area, access, and the deliverable — with province-wide pricing and no regional premium; a focused investigation typically starts in the low-to-mid hundreds, with larger surveys priced by the half-day or day. Because GPR leak work pairs with acoustic confirmation, the quote covers the methods the job actually needs, not a fixed per-foot rate. The free phone consult turns your situation into a firm number in about five minutes: 604-239-9934.

All 47 cities in our coverage — Metro Vancouver through the Fraser Valley, Vancouver Island, the Okanagan, and beyond — each with a dedicated local page that states the real ground conditions affecting radar performance there. Every one of the five core GPR leak applications carries its own page per city, so the local picture is specific rather than generic. Mon–Sat, 8am–6pm Pacific.